1IPCRM(1P) POSIX Programmer's Manual IPCRM(1P)
2
6 This manual page is part of the POSIX Programmer's Manual. The Linux
7 implementation of this interface may differ (consult the corresponding
8 Linux manual page for details of Linux behavior), or the interface may
9 not be implemented on Linux.
10
12 ipcrm — remove an XSI message queue, semaphore set, or shared memory
13 segment identifier
14
16 ipcrm [-q msgid|-Q msgkey|-s semid|-S semkey|-m shmid|-M shmkey]...
17
19 The ipcrm utility shall remove zero or more message queues, semaphore
20 sets, or shared memory segments. The interprocess communication facili‐
21 ties to be removed are specified by the options.
22 Only a user with appropriate privileges shall be allowed to remove an
24 interprocess communication facility that was not created by or owned by
25 the user invoking ipcrm.
26
28 The ipcrm utility shall conform to the Base Definitions volume of
29 POSIX.1‐2017, Section 12.2, Utility Syntax Guidelines.
30 The following options shall be supported:
32 -q msgid Remove the message queue identifier msgid from the system and
34 destroy the message queue and data structure associated with
35 it.
36 -m shmid Remove the shared memory identifier shmid from the system.
38 The shared memory segment and data structure associated with
39 it shall be destroyed after the last detach.
40 -s semid Remove the semaphore identifier semid from the system and
42 destroy the set of semaphores and data structure associated
43 with it.
44 -Q msgkey Remove the message queue identifier, created with key msgkey,
46 from the system and destroy the message queue and data struc‐
47 ture associated with it.
48 -M shmkey Remove the shared memory identifier, created with key shmkey,
50 from the system. The shared memory segment and data structure
51 associated with it shall be destroyed after the last detach.
52 -S semkey Remove the semaphore identifier, created with key semkey,
54 from the system and destroy the set of semaphores and data
55 structure associated with it.
56
58 None.
59
61 Not used.
62
64 None.
65
67 The following environment variables shall affect the execution of
68 ipcrm:
69 LANG Provide a default value for the internationalization vari‐
71 ables that are unset or null. (See the Base Definitions vol‐
72 ume of POSIX.1‐2017, Section 8.2, Internationalization Vari‐
73 ables for the precedence of internationalization variables
74 used to determine the values of locale categories.)
75 LC_ALL If set to a non-empty string value, override the values of
77 all the other internationalization variables.
78 LC_CTYPE Determine the locale for the interpretation of sequences of
80 bytes of text data as characters (for example, single-byte as
81 opposed to multi-byte characters in arguments).
82 LC_MESSAGES
84 Determine the locale that should be used to affect the format
85 and contents of diagnostic messages written to standard
86 error.
87 NLSPATH Determine the location of message catalogs for the processing
89 of LC_MESSAGES.
90
92 Default.
93
95 Not used.
96
98 The standard error shall be used only for diagnostic messages.
99
101 None.
102
104 None.
105
107 The following exit values shall be returned:
108 0 Successful completion.
110 >0 An error occurred.
112
114 Default.
115 The following sections are informative.
117
119 None.
120
122 None.
123
125 None.
126
128 None.
129
131 ipcs
132 The Base Definitions volume of POSIX.1‐2017, Chapter 8, Environment
134 Variables, Section 12.2, Utility Syntax Guidelines
135 The System Interfaces volume of POSIX.1‐2017, msgctl(), semctl(), shm‐
137 ctl()
138
140 Portions of this text are reprinted and reproduced in electronic form
141 from IEEE Std 1003.1-2017, Standard for Information Technology -- Por‐
142 table Operating System Interface (POSIX), The Open Group Base Specifi‐
143 cations Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of
144 Electrical and Electronics Engineers, Inc and The Open Group. In the
145 event of any discrepancy between this version and the original IEEE and
146 The Open Group Standard, the original IEEE and The Open Group Standard
147 is the referee document. The original Standard can be obtained online
148 at http://www.opengroup.org/unix/online.html .
149 Any typographical or formatting errors that appear in this page are
151 most likely to have been introduced during the conversion of the source
152 files to man page format. To report such errors, see https://www.ker‐
153 nel.org/doc/man-pages/reporting_bugs.html .
154IEEE/The Open Group 2017 IPCRM(1P)